The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2002
Filed:
Oct. 06, 1999
Yoshikazu Goto, Hirakata, JP;
Yukio Nishino, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A disc case having a case main unit including an accommodation chamber for rotatably accommodating a disc having a signal recording surface on at least one side of the disc, support member access openings provided in the top and bottom walls of the accommodation chamber so that a chucking member can apply an external pressure to the disc, a head access opening formed in the top or bottom wall of the accommodation chamber and tangent to the side wall surface of the accommodation chamber so that a read/write head can read and/or record signals on the signal recording surface of the disc, and a concave portion formed in an area extending from the side wall surface at the head access opening to the front fringe portion of the case main unit and concave with respect to the top or bottom surface of the main unit of the case. The disc case also includes a shutter installed on the case main unit to cover the support member access openings, the head access opening and the concave portion when the shutter is closed. The shutter opens to expose the support member access openings and the head access opening by sliding in at least one direction from the covered position along the front fringe portion of the case main unit. A shielding portion provided on the case main unit shields all or a part of the passages communicating with the accommodation chamber even when the shutter is closed.